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12572225 = 522917341
BaseRepresentation
bin101111111101…
…011001000001
3212122201211222
4233331121001
511204302400
61125244425
7211601501
oct57753101
925581758
1012572225
117107776
124263715
1327b25b3
141953a01
151185185
hexbfd641

12572225 has 12 divisors (see below), whose sum is σ = 16128060. Its totient is φ = 9710400.

The previous prime is 12572207. The next prime is 12572233. The reversal of 12572225 is 52227521.

It can be written as a sum of positive squares in 6 ways, for example, as 132496 + 12439729 = 364^2 + 3527^2 .

It is not a de Polignac number, because 12572225 - 28 = 12571969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12572194 and 12572203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7946 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (1344005).

Almost surely, 212572225 is an apocalyptic number.

It is an amenable number.

12572225 is a deficient number, since it is larger than the sum of its proper divisors (3555835).

12572225 is a wasteful number, since it uses less digits than its factorization.

12572225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17380 (or 17375 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 12572225 is about 3545.7333515085. The cubic root of 12572225 is about 232.5255685451.

Adding to 12572225 its reverse (52227521), we get a palindrome (64799746).

The spelling of 12572225 in words is "twelve million, five hundred seventy-two thousand, two hundred twenty-five".

Divisors: 1 5 25 29 145 725 17341 86705 433525 502889 2514445 12572225